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Soft Seat Wafer Check Valve

Soft Seat Wafer Check Valve

Structural Feature Short structural length,only 1/4~1/8 of that of traditional flanged check valve; Low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve; Quick valve disc closedown,low water hammer pressure; Applicable for and easily installed for vertical or...
Product Details


Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.

Basic Specification

Mpa: High Pressure

Nominal Diameter1.5"- 60"  (DN40 - DN1500)

Working TemperatureNormal Temperature

Material: Carbon steel, Stainless steel, Alloy steel, Bronze

Applicable MediumCorrosive Medium, Oil, Other, Steam, Water

Flow DirectionUnidirectional

Type: Direct Connection

Driving Mode: Automatic

Sealing Form: Flexible Seal

Material Option:  

Carbon steel  

A216 Gr. WCB, WCC, WCA, etc

Low temperature steel

A352 Gr. LCB, LCC, LC1, etc

Cr-Mo steel

A217 Gr. WC6, WC9, C5, C12, C12A, etc

Stainless Steel

A351 Gr. CF8, CF8M, CF3, CF3M, CF8C, etc

Alloy steel

CN7M alloy 20, CN3M alloy 20 modified, CT15C, etc

Super duplex

A995 Gr. 4A, 5A, CE8MN, CD6MN, CD3MN, etc

Aluminum bronze

B148 C95500, C95600, C95800, etc


M30C, M35-1, CZ100, etc


CY40 inconel 600, etc


CW2m Hastelly C4, N12MV Hastelloy B, etc


CU5MCuC Incoloy 825, CW6MC Incoloy 625, etc



1. Design and manufacture of product according to American state standard ANSI B16.34, American petroleum institute standard API6D.
2. Small opening pressure, the disc can be opened fully with a very small pressure differential.
3. Rocker and hinge pin use inside-set design, reduces outer leakage point.
4. The body and bonnet of class 1500 - Class 900 check valve is connected with stud. And the body and bonnet of class 1500 - class 2500 check valve pressure seat structure to make product bulk small, weight light, seal credible.

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